/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0683a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-02-01 00:18:27,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-01 00:18:27,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-01 00:18:27,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-01 00:18:27,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-01 00:18:27,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-01 00:18:27,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-01 00:18:27,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-01 00:18:27,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-01 00:18:27,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-01 00:18:27,228 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-01 00:18:27,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-01 00:18:27,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-01 00:18:27,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-01 00:18:27,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-01 00:18:27,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-01 00:18:27,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-01 00:18:27,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-01 00:18:27,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-01 00:18:27,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-01 00:18:27,243 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-01 00:18:27,251 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-01 00:18:27,251 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-01 00:18:27,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-01 00:18:27,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-01 00:18:27,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-01 00:18:27,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-01 00:18:27,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-01 00:18:27,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-01 00:18:27,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-01 00:18:27,253 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-01 00:18:27,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-01 00:18:27,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-01 00:18:27,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-01 00:18:27,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-01 00:18:27,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-01 00:18:27,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:18:27,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-01 00:18:27,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-01 00:18:27,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-01 00:18:27,254 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-01 00:18:27,254 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-01 00:18:27,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-01 00:18:27,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-01 00:18:27,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-01 00:18:27,540 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-01 00:18:27,540 INFO L275 PluginConnector]: CDTParser initialized [2022-02-01 00:18:27,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0683a.c [2022-02-01 00:18:27,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb77dbcf5/08e67d751db246fab86593c671ee237f/FLAG5e1b5c6c5 [2022-02-01 00:18:28,083 INFO L306 CDTParser]: Found 1 translation units. [2022-02-01 00:18:28,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0683a.c [2022-02-01 00:18:28,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb77dbcf5/08e67d751db246fab86593c671ee237f/FLAG5e1b5c6c5 [2022-02-01 00:18:28,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb77dbcf5/08e67d751db246fab86593c671ee237f [2022-02-01 00:18:28,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-01 00:18:28,427 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-01 00:18:28,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-01 00:18:28,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-01 00:18:28,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-01 00:18:28,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:18:28" (1/1) ... [2022-02-01 00:18:28,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9542a22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:28, skipping insertion in model container [2022-02-01 00:18:28,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:18:28" (1/1) ... [2022-02-01 00:18:28,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-01 00:18:28,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-01 00:18:28,682 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0683a.c[7147,7160] [2022-02-01 00:18:28,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:18:28,694 INFO L203 MainTranslator]: Completed pre-run [2022-02-01 00:18:28,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0683a.c[7147,7160] [2022-02-01 00:18:28,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:18:28,787 INFO L208 MainTranslator]: Completed translation [2022-02-01 00:18:28,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:28 WrapperNode [2022-02-01 00:18:28,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-01 00:18:28,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-01 00:18:28,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-01 00:18:28,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-01 00:18:28,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:28" (1/1) ... [2022-02-01 00:18:28,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:28" (1/1) ... [2022-02-01 00:18:28,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:28" (1/1) ... [2022-02-01 00:18:28,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:28" (1/1) ... [2022-02-01 00:18:28,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:28" (1/1) ... [2022-02-01 00:18:28,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:28" (1/1) ... [2022-02-01 00:18:28,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:28" (1/1) ... [2022-02-01 00:18:28,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-01 00:18:28,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-01 00:18:28,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-01 00:18:28,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-01 00:18:28,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:28" (1/1) ... [2022-02-01 00:18:28,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:18:28,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-01 00:18:28,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-01 00:18:28,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-01 00:18:28,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-01 00:18:28,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-01 00:18:28,991 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-01 00:18:28,991 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-02-01 00:18:28,991 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2022-02-01 00:18:28,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2022-02-01 00:18:28,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2022-02-01 00:18:28,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isfinite_double [2022-02-01 00:18:28,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2022-02-01 00:18:28,992 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-01 00:18:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-01 00:18:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-01 00:18:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-01 00:18:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-01 00:18:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2022-02-01 00:18:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-02-01 00:18:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-01 00:18:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-01 00:18:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-01 00:18:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-01 00:18:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-01 00:18:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-01 00:18:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2022-02-01 00:18:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2022-02-01 00:18:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2022-02-01 00:18:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure isfinite_double [2022-02-01 00:18:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2022-02-01 00:18:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-01 00:18:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-01 00:18:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-01 00:18:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-02-01 00:18:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-01 00:18:29,095 INFO L234 CfgBuilder]: Building ICFG [2022-02-01 00:18:29,096 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-01 00:18:29,520 INFO L275 CfgBuilder]: Performing block encoding [2022-02-01 00:18:29,529 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-01 00:18:29,530 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2022-02-01 00:18:29,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:18:29 BoogieIcfgContainer [2022-02-01 00:18:29,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-01 00:18:29,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-01 00:18:29,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-01 00:18:29,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-01 00:18:29,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.02 12:18:28" (1/3) ... [2022-02-01 00:18:29,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b68292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:18:29, skipping insertion in model container [2022-02-01 00:18:29,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:18:28" (2/3) ... [2022-02-01 00:18:29,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b68292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:18:29, skipping insertion in model container [2022-02-01 00:18:29,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:18:29" (3/3) ... [2022-02-01 00:18:29,539 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683a.c [2022-02-01 00:18:29,544 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-01 00:18:29,544 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-01 00:18:29,582 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-01 00:18:29,587 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=QVASR [2022-02-01 00:18:29,588 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-01 00:18:29,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 109 states have (on average 1.5963302752293578) internal successors, (174), 110 states have internal predecessors, (174), 10 states have call successors, (10), 8 states have call predecessors, (10), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-01 00:18:29,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-02-01 00:18:29,624 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:18:29,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:18:29,632 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:18:29,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:18:29,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1657846494, now seen corresponding path program 1 times [2022-02-01 00:18:29,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:18:29,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860937829] [2022-02-01 00:18:29,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:18:29,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:18:29,713 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:18:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:29,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:18:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:29,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-01 00:18:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:29,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-01 00:18:29,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:18:29,985 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:18:29,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [860937829] [2022-02-01 00:18:29,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [860937829] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:18:29,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:18:29,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-01 00:18:29,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425678145] [2022-02-01 00:18:29,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:18:29,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-01 00:18:29,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:18:30,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-01 00:18:30,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-01 00:18:30,030 INFO L87 Difference]: Start difference. First operand has 129 states, 109 states have (on average 1.5963302752293578) internal successors, (174), 110 states have internal predecessors, (174), 10 states have call successors, (10), 8 states have call predecessors, (10), 8 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-02-01 00:18:30,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:18:30,405 INFO L93 Difference]: Finished difference Result 250 states and 387 transitions. [2022-02-01 00:18:30,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-01 00:18:30,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2022-02-01 00:18:30,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:18:30,413 INFO L225 Difference]: With dead ends: 250 [2022-02-01 00:18:30,413 INFO L226 Difference]: Without dead ends: 124 [2022-02-01 00:18:30,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:18:30,418 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 150 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-01 00:18:30,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 157 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-01 00:18:30,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-02-01 00:18:30,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-02-01 00:18:30,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 106 states have (on average 1.3773584905660377) internal successors, (146), 106 states have internal predecessors, (146), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-01 00:18:30,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 165 transitions. [2022-02-01 00:18:30,477 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 165 transitions. Word has length 28 [2022-02-01 00:18:30,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:18:30,477 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 165 transitions. [2022-02-01 00:18:30,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-02-01 00:18:30,478 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 165 transitions. [2022-02-01 00:18:30,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-02-01 00:18:30,478 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:18:30,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:18:30,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-01 00:18:30,479 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:18:30,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:18:30,479 INFO L85 PathProgramCache]: Analyzing trace with hash 709043947, now seen corresponding path program 1 times [2022-02-01 00:18:30,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:18:30,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [627890847] [2022-02-01 00:18:30,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:18:30,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:18:30,482 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:18:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:30,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-01 00:18:30,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:30,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-02-01 00:18:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:30,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-02-01 00:18:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-01 00:18:30,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-01 00:18:30,675 INFO L139 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-01 00:18:30,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [627890847] [2022-02-01 00:18:30,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModulePreferences [627890847] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-01 00:18:30,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-01 00:18:30,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-01 00:18:30,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324779077] [2022-02-01 00:18:30,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-01 00:18:30,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-01 00:18:30,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-01 00:18:30,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-01 00:18:30,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-01 00:18:30,678 INFO L87 Difference]: Start difference. First operand 124 states and 165 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-02-01 00:18:31,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-01 00:18:31,055 INFO L93 Difference]: Finished difference Result 225 states and 306 transitions. [2022-02-01 00:18:31,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-01 00:18:31,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-02-01 00:18:31,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-01 00:18:31,057 INFO L225 Difference]: With dead ends: 225 [2022-02-01 00:18:31,057 INFO L226 Difference]: Without dead ends: 124 [2022-02-01 00:18:31,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-01 00:18:31,058 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 146 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-01 00:18:31,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 151 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-01 00:18:31,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-02-01 00:18:31,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-02-01 00:18:31,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 106 states have (on average 1.3679245283018868) internal successors, (145), 106 states have internal predecessors, (145), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-01 00:18:31,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 164 transitions. [2022-02-01 00:18:31,074 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 164 transitions. Word has length 31 [2022-02-01 00:18:31,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-01 00:18:31,074 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 164 transitions. [2022-02-01 00:18:31,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-02-01 00:18:31,074 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 164 transitions. [2022-02-01 00:18:31,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-02-01 00:18:31,075 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:18:31,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:18:31,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-01 00:18:31,075 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-01 00:18:31,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:18:31,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1383023855, now seen corresponding path program 1 times [2022-02-01 00:18:31,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:18:31,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2020997897] [2022-02-01 00:18:31,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:18:31,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:18:31,078 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:18:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:18:31,181 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-01 00:18:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:18:31,242 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-01 00:18:31,242 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-01 00:18:31,244 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-01 00:18:31,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-01 00:18:31,247 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-01 00:18:31,249 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-01 00:18:31,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.02 12:18:31 BoogieIcfgContainer [2022-02-01 00:18:31,260 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-01 00:18:31,261 INFO L158 Benchmark]: Toolchain (without parser) took 2833.53ms. Allocated memory was 202.4MB in the beginning and 244.3MB in the end (delta: 41.9MB). Free memory was 153.0MB in the beginning and 119.4MB in the end (delta: 33.6MB). Peak memory consumption was 75.4MB. Max. memory is 8.0GB. [2022-02-01 00:18:31,261 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 202.4MB. Free memory was 169.8MB in the beginning and 169.7MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-01 00:18:31,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.22ms. Allocated memory is still 202.4MB. Free memory was 152.7MB in the beginning and 174.3MB in the end (delta: -21.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-01 00:18:31,264 INFO L158 Benchmark]: Boogie Preprocessor took 93.59ms. Allocated memory is still 202.4MB. Free memory was 174.3MB in the beginning and 171.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-01 00:18:31,267 INFO L158 Benchmark]: RCFGBuilder took 649.46ms. Allocated memory is still 202.4MB. Free memory was 171.1MB in the beginning and 145.4MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-02-01 00:18:31,267 INFO L158 Benchmark]: TraceAbstraction took 1727.04ms. Allocated memory was 202.4MB in the beginning and 244.3MB in the end (delta: 41.9MB). Free memory was 144.9MB in the beginning and 119.4MB in the end (delta: 25.5MB). Peak memory consumption was 67.4MB. Max. memory is 8.0GB. [2022-02-01 00:18:31,271 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 202.4MB. Free memory was 169.8MB in the beginning and 169.7MB in the end (delta: 132.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 359.22ms. Allocated memory is still 202.4MB. Free memory was 152.7MB in the beginning and 174.3MB in the end (delta: -21.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 93.59ms. Allocated memory is still 202.4MB. Free memory was 174.3MB in the beginning and 171.1MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 649.46ms. Allocated memory is still 202.4MB. Free memory was 171.1MB in the beginning and 145.4MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 1727.04ms. Allocated memory was 202.4MB in the beginning and 244.3MB in the end (delta: 41.9MB). Free memory was 144.9MB in the beginning and 119.4MB in the end (delta: 25.5MB). Peak memory consumption was 67.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 300]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 299. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L291] double x = 1.0 / 0.0; [L292] double y = __VERIFIER_nondet_double(); [L294] CALL, EXPR isinf_double(x) [L248] __int32_t hx, lx; [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L294] RET, EXPR isinf_double(x) [L294] EXPR isinf_double(x) && isfinite_double(y) [L294] CALL, EXPR isfinite_double(y) [L262] __int32_t hx; [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L294] RET, EXPR isfinite_double(y) [L294] EXPR isinf_double(x) && isfinite_double(y) [L294] COND TRUE isinf_double(x) && isfinite_double(y) && y < 0.0 [L296] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L296] RET, EXPR __ieee754_atan2(y, x) [L296] double res = __ieee754_atan2(y, x); [L299] EXPR res == -0.0 && __signbit_double(res) == 1 [L299] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L300] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 132 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 310 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 296 mSDsluCounter, 308 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 52 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 498 IncrementalHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 52 mSolverCounterUnsat, 304 mSDtfsCounter, 498 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-01 00:18:31,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...